McConaughey, who had previously considered running for governor of Texas, shared an impassioned statement after the mass shooting in Uvalde, Texas.
Manny Renfro described one of the victims, 8-year-old Uziyah Garcia, who was his grandson, as "the sweetest little boy that I've ever known."
Salvador Ramos reportedly bought a rifle as soon as he was legally allowed to purchase a firearm.
The Republicans suggested that arming teachers or placing more officers on campus would be more effective than stricter gun laws.
The president appeared to take aim at gun manufacturers for spending "two decades aggressively marketing assault weapons."
In contrast to Biden and Obama, former President Donald Trump is expected to headline an NRA conference in Texas days after the shooting.
The suspected school shooter reportedly shared pictures of assault rifles and an ammunition magazine to his Instagram account before it was deleted on Tuesday.
"This tragedy highlights the importance of always having blood available on the shelf and before its needed," said the South Texas Blood & Tissue Center.
Fred Guttenberg, who lost his daughter in the Parkland school shooting, urged GOP lawmakers to either join Democrats in their gun control efforts or resign.
"We don't need more gun control. We need to return to God," GOP Congresswoman Marjorie Taylor Greene tweeted in the wake of the deadly shooting.
Users on social media slammed Representative Tony Gonzales after his tweet following a school shooting that killed 14 children in his district.
The 18-year-old allegedly shot and killed 14 students and one teacher. He also allegedly shot his grandmother prior to entering the school.
At least 15 are believed to be dead and more injured after a mass shooting at Robb Elementary School in Texas Tuesday afternoon.
"He shot and killed, horrifically, incomprehensibly, 14 students and killed a teacher," Texas Governor Greg Abbott said on Tuesday.
Nineteen children and two teachers were killed when an 18-year-old gunman attacked the Texas elementary school.
An investigation continues after a gunman killed at least 19 children and two adults at an elementary school in Uvalde, TX.
The shooting reportedly occurred a block away from the school, with the shooter running into the building afterward.
"We've been defined as a 'lockdown generation,'" Noah Lumbantobing of March For Our Lives tells Newsweek. "It's not a matter of if, it's a matter of when."
The local sheriff's office said that it has detained a suspect in connection to the shooting.
The mother of a student was shot in the hand by a school police officer after she brandished a handgun outside the high school, waving it in the direction of students and staff, Atlanta police said.
According to authorities, Friday's incident was the third shooting that involved a young child in New York City this year.
The student suspect is still hospitalized after reportedly being shot by police officers.
Ethan Crumbley was denied a transfer to a juvenile facility and will remain in adult jail until trial.
"I thought the case was really about the gun, but it is just as much about greed," said a lawyer for families of victims in the school shooting that killed 26.
"Young people marched, we voted, we did what was asked of us. It's time for the President to deliver for us," Parkland survivor David Hogg said on Monday.
The parent has called on Joe Biden to take immediate action on gun control to mark the fourth anniversary of the 2018 shooting.
The first half of the 2021-2022 school year had the highest number of people shot on school grounds since a nonprofit began tracking gun incidents in 2013.
The state, during a hearing Thursday, said Cruz claimed that his alternate personality "hatred" is the one that committed the 2018 massacre.
A student and security guard were injured in the shooting, which police say happened in the parking lot.
The pair have pleaded not guilty to four counts of involuntary manslaughter.